发明名称 |
Thickeners for products for topical application |
摘要 |
A thickener for products for topical application such as personal care products for application to the skin or hair, or topically administrable pharmaceutical preparations, comprises a water-in-oil emulsion containing polymeric material, at least 98% of which polymeric material is soluble in the aqueous phase. The polymeric material comprises units derived from (a) acrylamide, (b) 2-acrylamido-2-methylpropane-sulphonic acid (AMPS) and (c) a polyfunctional monomer, present in an amount of from 0.12 to 2 milliequivalents per mol of total monomer units. At least some of the AMPS units are in the form of a neutral salt such that the aqueous phase of the water in oil emulsion has a pH of at least 5.5.
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申请公布号 |
US6051245(A) |
申请公布日期 |
2000.04.18 |
申请号 |
US19980210961 |
申请日期 |
1998.12.15 |
申请人 |
SCOTT BADER COMPANY LIMITED |
发明人 |
CHAUDHRY, ARSHAD-UL-HAQ;MIKOLAJEWICZ, ROMAN J |
分类号 |
A61K8/00;A61K8/06;A61K8/34;A61K8/37;A61K8/41;A61K8/81;A61K9/00;A61K9/06;A61K9/107;A61K47/32;A61Q5/00;A61Q5/02;A61Q19/00;C08F2/32;C09K3/00;(IPC1-7):A61K7/48 |
主分类号 |
A61K8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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